Can search engines crawl Javascript and how do you test it?

[Dynapro]

Can search engines crawl Javascript and how do you test it?

[swaroop23]

In recent years, developers have been using JavaScript rich technology, believing Google can crawl and index JavaScript properly. ... Today, as long as you're not blocking Googlebot from crawling your JavaScript or CSS files, we are generally able to render and understand your web pages like modern browsers.

[jayam]

To make sure that Googlebot can still see your content after it's rendered, use the Mobile-Friendly Test or the URL Inspection Tool and look at the rendered HTML. If the content isn't visible in the rendered HTML, Googlebot won't be able to index it.

[jayammrg]

We ran a series of tests that verified Google is able to execute and index JavaScript with a multitude of implementations. We also confirmed Google is able to render the entire page and read the DOM, thereby indexing dynamically generated content.

[chandrao7]

In recent years, developers have been using JavaScript rich technology, believing Google can crawl and index JavaScript properly. ... Today, as long as you're not blocking Googlebot from crawling your JavaScript or CSS files, we are generally able to render and understand your web pages like modern browsers.

[dennis123]

Yes, and you can test for it with Search Console. Using Search Console, you’ll be able to fetch and render any page to see which elements are read and displayed correctly. Search Console identifies elements that cannot be rendered so they can be fixed.

[dombowkett]

Yes, but we have to optimize the code for on-page SEO.